Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 5121-5140 of 9564
-
A Study of On-Line and Off-Line Turbine Washing to Optimize the Operation of a Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2007)This paper highlights the procedure followed in order to establish an effective on-line and off line water wash program on a fleet of 36 small industrial turbines. To determine the efficacy ... -
Gas Turbine Combustor Liner Life Assessment Using a Combined Fluid/Structural Approach
(The American Society of Mechanical Engineers (ASME), 2007)A life assessment was performed on a fighter jet engine annular combustor liner, using a combined fluid/structural approach. Computational fluid dynamics analyses were performed to obtain the ... -
Fuzzy Logic Estimation Applied to Newton Methods for Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2007)This method, based on fuzzy logic principles, is intended to find the most likely solution of an over-determined system, in specific conditions. The method addresses typical problems encountered ... -
Enhanced External Aerodynamic Performance of a Generic Combustor Using An Integrated OGV/Prediffuser Design Technique
(The American Society of Mechanical Engineers (ASME), 2007)In this paper we use experimental measurements to characterize the extent that improved the external aerodynamic performance (reduced total pressure loss, increased flow quality) of a gas-turbine ... -
Basic Limitations on the Performance of Stirling Engines
(The American Society of Mechanical Engineers (ASME), 2007)The performance of Stirling engines is subject to limitations resulting from power dissipation in the regenerator. The dissipation is caused by pressure gradients in the regenerator required to ... -
Prediction of Engine Performance Under Compressor Inlet Flow Distortion Using Streamline Curvature
(The American Society of Mechanical Engineers (ASME), 2007)Traditionally, engine performance has been simulated based on nondimensional maps for compressors and turbines. Component characteristic maps assume by default a given state of inlet conditions ... -
A Comparison of Single and Multiphase Jets in a Crossflow Using Large Eddy Simulations
(The American Society of Mechanical Engineers (ASME), 2007)Large eddy simulations (LES) are performed for single and multiphase jets in crossflow (JICF). The multiphase JICF are compared to the single-phase case for the same momentum and mass flow ... -
Ceramic Matrix Composite Combustor Liners: A Summary of Field Evaluations
(The American Society of Mechanical Engineers (ASME), 2007)Solar Turbines Incorporated, under U.S. government sponsored programs, has been evaluating ceramic matrix composite combustor liners in test rigs and Solar’s Centaur® 50S gas turbine engines ... -
Advancements in Gas Turbine Fuels From 1943 to 2005
(The American Society of Mechanical Engineers (ASME), 2007)The first provisional jet fuel specifications were published in 1943 in England (RDE/F/KER/210) and 1944 in the U.S. (AN-F-32a). Jet fuel has undergone many changes in subsequent years, with ... -
Open-Loop Active Control of Combustion Dynamics on a Gas Turbine Engine
(The American Society of Mechanical Engineers (ASME), 2007)Combustion dynamics is a prominent problem in the design and operation of low-emission gas turbine engines. Even modest changes in fuel composition or operating conditions can lead to damaging ... -
25Years of BBC/ABB/Alstom Lean Premix Combustion Technologies
(The American Society of Mechanical Engineers (ASME), 2007)The paper will show the development of lean premix combustion technologies in BBC, ABB, and Alstom gas turbines. Different technologies have been developed and applied in Brown Boveri Company ... -
Combustion Instabilities and Control of a Multiswirl Atmospheric Combustor
(The American Society of Mechanical Engineers (ASME), 2007)Thermoacoustic instability and lean blowout (LBO) are investigated experimentally in an atmospheric swirl-stabilized combustor fueled with gaseous propane. Factors affecting combustion instability are ... -
Catalytic Combustion Systems for Microscale Gas Turbine Engines
(The American Society of Mechanical Engineers (ASME), 2007)As part of an ongoing effort to develop a microscale gas turbine engine for power generation and micropropulsion applications, this paper presents the design, modeling, and experimental assessment ... -
Experimental Validation of a Common-Rail Injector Model in the Whole Operation Field
(The American Society of Mechanical Engineers (ASME), 2007)The present study deals with the definition of an accurate mathematical model of a production common-rail-type injector for automotive diesel engines. The mathematical model defined in a previous ... -
The Effects of High-Pressure Injection on a Compression–Ignition, Direct Injection of Natural Gas Engine
(The American Society of Mechanical Engineers (ASME), 2007)This study investigated the effects of injection pressure on the performance and emissions of a pilot-ignited, late-cycle direct-injected natural gas fueled heavy-duty engine. The experiments, ... -
Experimental Investigations on a Hydrogen-Diesel Dual Fuel Engine at Different Compression Ratios
(The American Society of Mechanical Engineers (ASME), 2007)An experimental investigation was carried out on a computer interfaced single cylinder variable compression ratio, compression ignition engine to optimize the performance characteristics and to ... -
Prediction of Peak Cylinder Pressure Variations Over Varying Inlet Air Condition of Compression-Ignition Engine
(The American Society of Mechanical Engineers (ASME), 2007)Peak cylinder pressure (pmax) of a compression-ignition engine can be affected by the engine inlet air condition, such as its inlet air temperature (Ti) and pressure (pi). The variation of ... -
Enhanced Splash Models for High Pressure Diesel Spray
(The American Society of Mechanical Engineers (ASME), 2007)Mixture preparation is a crucial aspect for the correct operation of modern direct injection (DI) Diesel engines as it greatly influences and alters the combustion process and, therefore, the ... -
Experimental Investigation of Flow Phenomena of a Single Fuel Jet in Cross-Flow During Highly Preheated Air Combustion Conditions
(The American Society of Mechanical Engineers (ASME), 2007)Particle image velocimetry and a spectroscopy technique has been used to obtain information on the flow dynamics and flame thermal signatures of a fuel jet injected into a cross-flow of normal ... -
Prediction of Sorbent Performance in a Circulating Fluidized Bed Boiler Based on Petrographic Properties
(The American Society of Mechanical Engineers (ASME), 2007)A method for prediction of sorbent consumption is presented here and has been developed based on plant operating data for a boiler in which several limestone and dolostone products were tested ...